Air-valve for air-compressors.



PATENTED JULY 21, 1908.

J. G. LEYNER. AIR VALVB FOR AR GOMPRESSORS.

APPLIOATIO N FILED MAY 28.1906.

as /3 %way v No. 893,852.`

PATENTED JULY 21, 19 08.

J. G.'-LEYNER`. AIR'VALVE FOR AIR GOMPRESSORS;

` APPLIOATION PILBD IAY 28.19.06.

2 SERVIS-8111211118.

I '5 v inlet valve. I have', however j JOHN GEORGE LEYNER, oF DE vER, ooLonAho.

p 'AIR-VALVE FOR am-oomrrmssons.

No. &93,852.

Specificati on of Letters Patenta Application fi led May 28,'1906. Serial No. 319,138.

Paten'tediu 2 1, 1908.

To al l whom 'Lt may com-em;- Be it known that I, JOHN' GEORGE LEY- NER, a 'citizen of the United States off America, residing in the city and County of Denverand State of Colorado, have invented a new and useful Air-Valve for Air-Compressors, of which the following is a specification. 4

My invention relates to improvements in air valves, and especially to air outlet valves for air compressors, and the object of my invention is: to provide an elasti'c sensitive valve that will seat quickly and evenly. attain this object by the Inechanism illustrated in the accompanying drawings, in which:

Figur-e 1, 'is a vertical, longitudinal, sectional View of ran air compre'ssing cylinder, showing the manner of securing the improved air outlet port's at the ends of the cylinder. Fig( 2, is a vertical, transverse, sectional view through one end of the cylinder, showing the outlet ports, the valves seatedthereon, and'the manner of clamping the valves in position. Fig. 3, is a horizontal sectional view of a portion of the end of the cylinder, showing a pair of valves in plan view. Fig. 4, is a per- 'spective view of one of the clamping blocks by which the valves are clamped to the cy v i inder, the said blocks being provided with stop arms, which limit the upward movement of the valves. longitudinal, sectional view of-a compound, ntercooling airccompressor equipped with my improved valve. And' Fig.- 6, is a sectional view through a portion of one end of one of the c linders shown' in Fig. 5 showin a modificaton of the outlet valve, applie thereto.

Similar letters of reference-refer to similar parts throughout the several views.

Referring to the drawing's, the numeral 1,

designates an air compressing cylinder,

which is not of the water jacketed type,

though if desired my improved valve maybe used on any type of air compressing cylinder..

2, designates a pisten head, and 3 a iston rod reciprocally mounted in the cylin er; '4, is the front cylinder head; and 5, the rear cylinder head. These may any suitable type of air mlet valve, desired my new valve may. be used as an air va 'and valve especiallyas an air' 'outlet ve,

valve above the outlet Figl 5, is a vertical,j

i ,porte 12fand be provded with. ;walls of the 'cylinder heads,

and if 'designed my' intel-cooling compoun air compressor, only. the air comp'ressingc steam drivmg cylm this t peof compressor, provi ed 'with water jackets 6, which are provided with a series of air conductng er. being left OH. In

the cylinders 'are disk valve operativel' attached to' 'an air' lindersare shown, thei tubes 7,that extend throughit from end to end, and the cylinder heads are provided with'air chambers 8, whichconnect by suit able assages 9,with an air irlet charnber` 10,

whic plate 11, and which connects with t e at'- mosphere. The inner wall 12, ofeach of the cylinder" heads, is provided with a circular row of air inlet ports 12^, 12?, 'is attached to the inner of this in'ner wall, this valve being a dsk "valve, and a modification of the valve forming the subject matter of the present invention. The outlet valves are the 'same as those shown 'in Fig. 1, but the air passages are arranged differently,'and as they do not form 'a part of my resent inventionfand as they `are l ully described in my pendng appliis positioned in the supportin base A and an inlet valve face of the hub' i.

s'o V' caton No. 123,539, filed October 1, 1902, for

an' im roved air compressor, brief escription ofthem'is all that s necessary.

` The air entering plate flows into the air chambers of both the the following i 5 the chamberof the'base front and rear 'cylinder heads of the largest or low pressure cylinder, and is drawn nto the cylinder through the crcular row of portholes in the inner wall of these cylinder heads through'the disk valve into the cylinder at eachstroke of the cylinder,-andis compressed and forced out ofr the cylinder through `the outlet valves into valve ,chambers `13 and" A tubes 15,' and fromithem into an independent chamber formed' in the rear cy mder heads, and then into the port 17, of t e lower connectin piece 18, from which il i 14:,` from which it flows into 4 flows into the ront cylinder head 'of the' pressure cylinder,

high "pressure cylinder, from which thevpscompressed there and forced tubes 20 into the port 21, of the upper con-` necting piece 22, into' the outlet ppe 23,

h. h `and through thej tubes 19 to the rear' cylinder head of the which cor'veys it to a storage tank or to use.

with pistons 24, and a pisten rod 25 connects preferably them together, and extends from the low pressure cylinder through its front head 'I preferably use two or more of my new air. 'outlet valves at each end of the cylinder, and

position them at the upper side of the cylinder. I* also preferably arra-nge the 4 cylinder so that the air as it is compressed in der heads through a set of outletports that' e inder forms the water valve chamber clamping Washer 373 the cylinderleaves it through ports 27 formed in the inner peri heral shell of the cylinder close to the c lin er heads, althou h if desired the air may e discharged throug the cylinare independent of the air inlet ports. I form the low pressure "cylinder with two shells 28 and 29, arranging them at' a short distance apart so as to form a`chamber 30, between t em, and the ends of this chamber are closed by walls 31, and the space between these two walls and the outer and inner shell of the cylspace. I preferably form two air outletports 27,

.through the, nner wall of the cylinder into the valve chamber, `and on the floor of the around these ports I form a valve seat 32, which consists of a raised base, and as the inner and outer shells of the cylnder are circular, the seat may also'be made 'to conform to 'the curvatu're of the inner shell, as illustrated, and* to be extended around to Fig. 6, where thevalve chambe'r' is 'ositioned at ,the top of the cylinder centrall yon each side of its vertical center, and the valve seat also extends in a curve parallel with the eripheral curve ofthe inner shell of the cy 1nder; I preferably, however, make two indeendent flat seats 33 and'34, extending them rom the central vertical line where they meet and form an apex, and from which point they extend in op osite directions in a perfectly straight leve 4 lane,'to close to theo posite side walls of t e valve chamber. 'T e surfaces of. these valve Seats are finished smooth all over, and at the apex I thread one of the ends of two studs 35 and 36, at a short distance apart, and on the studs I place 'a which extends from one and beyond. each far stud to the other,

valve seats, which are enough to cover the 'made wide enough to receive ports of area enough for the capacity of thecylinder. The;

ports are made of 'rectangular form,'with ther largest diameter extending from the apex towards the opposite end 'of the valve;

of the length of the.

seat, and in the center washer I form two rojecting stop lu s 38 d from opposite si esof the upper portion of. the Washer, and project a short distance parallel with-the len th of the valve and port, but the undr-sies of these lu s are positioned at a short redetermined istance above the to of t e-valve,

the distance being made su cient to define 42 is freed from the body 7 they unite a -form a seat around each port, as shown in ohamber through the valve -be connected by a'pipe to a from v each and limit the openingmovement of the valve. 'The valves 39^ each consist of a thin flat plate of spring metal, which is made the adjacert side -of the Washer, and is 'clamped down rigidly against -thevalve seat, by the Washer, and by nuts 40 and 41,'

that' are threaded to the ends of the studs and .that screw down against the Washer. The .'cl against the.valve seat 'causes it to lie'flat and tight against the valve seat throughout its length, and evenly over the port and in the center of the valve a tongue of metal e of the .valve by two parallel slots 43 and 44, which .are formed on opposite sides of the valve at a shortdistance from its edges, and extend amping of the valve' plate down.

to theplam ed end of 'the valve, -where i acent to the Washer, and thus form the tongue 42.' At the opposite end of the valve, the slots ap roach each other, and terminate far enoug apart to leave a narrow neck of 'metal 45, between the tongue and the 'body of the valve at its outer end. The' tongues are made a little wider than the ort, and their side and end edges rest on 't e edges of the valve ,seat 'around the 'edges of the ports, while the remainder of the body of the valve rests on the remainder of the valve `seat, and the free end of the tong ueis positioned directly ,under the projectng ends of the stop lugs so'that when the valve is lifted from its seat 'by the inflowing air, they Will strike 'against the lugs, which thus `defines the opening movement of the valve.

The air in the simple cylinder shown in Fig. '1, after it is forcedj into the' valve fiows into an air port and out of the outlet, which may suitable cooler or receiver, 'which I do not show, but in the' water jacketed intercooler type of air come `pressor, as shown in Fig. 5, the ar after entering the low pressure cylinder, is compressed at each'stroke of the ston and asses out alternately at each en of the cy mder of the cylinder, :through suitable groups of pi e, and then asses through the 'front cyhn er head, an g into the high pressure cylinder, where .it is'further compressed, in the same mamer as in the' low ressure cylinder, and passes out' through t 23, to a place of storage or to use.

e pipe i through the valves 39^,'into the valve chambers 13 and 14, whence it traverses the length The operation of my improved valveis' as follows: At each reciprocative stroke of the piston, the air is drawn'in'to the cylinders through my, air inlet valves alternately end of thecylinder, and on each 'forced through the ports &93,352

compressed and 27 against the tongues of the spring plate valves 39% which are lifted from the valve seats by the air pressure against their under sides, and they rise in a substantially level plane, but the valve from its fixed edge under the clamping washer assumes a reverse curve, as shown, while the ton ue itself rises and remains straight and su stantially parallel to the surface of the valve seat, and it rises until its free end strikes the stop, which is positioned to allow the tongue to lift far enough to open the port to its full capacity without straining the resilient tension of the spring valve plate. The instant the piston has completed its stroke and started hack, the valve closes by its own inherent resilient tension, the tongue moving down in a horizontal plane and resting with a strong but sensitive pressure evenly against its port seat, and the body springing fiat down also against the valve seat. The curved form of spring plate valve operates in a similar manner except that its tongue maintains a slight curved form that registers with the curvature of the valve seat.

My improvement is very simple, durable, and is sensitive and positive in its action.

Having described my invention, What I claim as new and desire to secure by Letters Patent, is:

1. In an air compressor, a valve of resilient sheet-metal cut to provide an integral inner tongue having a free end, and lateral spring members, said lateral spring members Secured to the valve-seat adjacent the free end of said tongue. y

2. In an air compressor, a valve of resilient sheet-metal cut to provide an integral inner tongue having a free end, lateral spring members, said lateral spring members secured to stroke of the piston the air. is

' the valve-seat adjacent the free end of said i tongue, and a' stop limiting the movement of the free end of said tongue.

3. In an' air compressor, a valve of resilient sheet-metal cut to provide an integral inner tongue having a free end and a relatively narrow attaching neck, and lateral spring members, said lateral spring members Secured to the valve-seat' adjacent the free end of said tongue.

4. In an air compressor, adjacent valve ports, valves therefor each comprising a reslient sheet-metal valve body out to provide an integral inner tongue having a free end, and lateral spring members, and common securing means for said lateral spring members located between said ports. 4

5. In an air valve for air compressors, the

` combination with the cylinder and the piston, of a water jacketed air compressing cylinder,--having a double shell and a valve chanber at each end, of cylinder heads fitting the opposite ends of said cylinder, having air -of said cylinders, and with air outlet inlet ports and air inlet valves, air outlet ports at the opposite ends of said cylinder through the inner shell of said cylinder into said valve chambers, having a valve seat within said -chambers, and a valve comprising thin plate of spring metal Secured at itsend to said valve seat and having a released tongue portion at its center portion, arranged to bear on said valve seat and arranged to be opened by the air conpressed by the reciprocal strokes of saidpiston.

6. In an air valve for air compressors, the combination of the cylinder, the piston, and

the piston rod, said cylinder being provided 'with valve chambers at its' opposite ends,

and air outlet ports eXtending from said cylinder into said ports, and valve seats in said chambers around said orts, a clamping Washer bolted to said vale seat, air outlet valves Secured at one end by said clamping Washer to said valve seat and arranged to fit said valve seat, said valves consisting of thin plates of springnetal provided with resilient tongue portions freed from its body portion in such a manner as to permit its body portion to resiliently move with said tongues v independent of that portion of said valve that is Secured by said Washer, said valves being adapted to be operated by the reciprocal strokes of said piston.

7. In an air outlet valve,` the combi'nation with the cylinder having a double shell, containing a water jacket, and air tubes extending through said water jacket, the piston, of the cylinder heads provided with air inlet ports, of valve chambers formed in the opposite ends of said cylinder connected to said air tubes; air outlet ports extending from said cylinder's bore through the inner shell of said cylinder into said chambers, said chambers being provided. with valve seats around said ports, said ports being positioned in opposite directions from a common central oint, a clamping Washer removably secure by bolts -to said central point, two valves arranged to be clamped at one.of their ends to said valve seats by said Washer and bolts, and adapted to extend in opposite directions from said Washer, and to fit over said ports and valve seats, and having said valves provided with slots and with resilient freed tongue members arranged to %ermit said valve to be lifted from said ports y the air pressure strokes of said pistonand to be closed by the inherent spring or resilient tension of said valve, together with and on the suction movement of said piston.

8. In an air outlet valve for air com ressors, the combination of the water-jaa eted intercooler compound cylinders and pistons, 'said cylinders having -hollow cylinder heads, and air inlet valves, and provided with air outlet valve chambers at the opposite ends ports' extending from 'said cylinders' piston ores into said Valve chambers, provided with valve seats in said cylinder, a thin spring- Inetal plate valve fitting each of said valve seats, and arranged to fit each of said valve ports, means for rigidly securing said valves in operative relation to said valve seats, and a pair of slots in the opposite sides of each ol' said plates connected together at one end of said valve plate, and arranged and adapted to freefroln the central portion of said valve i%late a tongue portion, which is adapted to t over its ort and toerest on thesurrounding edges o said port*s seat, said tongue and slots being so arrang'ed relative to each other and to the Secured portion of said valve to permit said valve to raise by its resilient springing quality and be moved away froni said valve seat by air pressure froni said oylinder through said ports, and be so arranged that said tongue will nove away froni said seatin a plane practically parallel throughout its length to said valve seat, and be returned v to said seat'by the resilient tension of said valve on the suction stroke of said piston, and neansfor defining the operative movement of said valve. I

9. In an air inlet valve for air compressors, the o inbination with operative compound cylinder water-jacketed air-intercooler, air compressor, of a valve chanber in each end and air outlet ports leading 'into said ehamber and having valve seats therein, and the pistons and piston rods in said oylinders,' the valve operatvely seated over said ports, the studs and their nuts threaded to said valve chanbers, the washers mounted on said studs and arranged' to clamp said valves to saidport seats, said valves being provided with slots arranged and adapted to release a tongue portion that is arranged to seat over said ports on said port seats, and be actuated by the operative air conpressing stroko of said piston, and its inherent resilient tension.

10. In anair inlet valve for air compressors, the combination of the'cylinder, the cylindor heads provided with air inlet orts, and the piston and piston rod, with a va ve chamber forIncd in each end of said cylinder, two air outlet ports extending froni said cylinder into said valve chanber and having Valve seats around said ports, stud bolts threaded centrally between said seats and ports, an oblong Washer mounted on said bolts, a thin spring-plate valve fitted to fit each of said valve seats, having one end extending under said Washer and clamped rigidly to said valve seats bysaid bolts and Washer, andhaving the body of each of said valves slotted by a U- shaped slot arranged to release a resilient tongue portion in such a nanner that its free end terminates adjacent to said asher, and that is arranged to fit the valve seats around the edges of said port, and to be opened and closed by the air pressure made by the reciprocal movement of said pisto'n, and lugs projecting from the opposite sides of said Washer and arranged in the path of the free end of said tongue, and adapted to limit its opening movement.

In testimony whereof I afliX my signature in presence of two witnesses.

JOHN GEORGE LEYNER.

Witnesses:

G. SARGENT ELLIoTT, Bnssm THoMPsoN. 

